Kristen Bell Sings "Let It Snow"

Veronica Mars has a good set of pipes on her!

Kristen Bell posted a holiday video on her Twitter earlier today, showing her singing an acoustic version of "Let It Snow" with former "American Idol" contestant Jackie Tohn and friend Hannah Anderson -- and they're all really good!

Bell joked her plan is to take down Michael Buble reign as the Kind of Christmas, tweeting "I LOVE Buble. BUT now that I'm clearly his direct competition for a hot Christmas single."